Oil burner



A. E. GOODSPED GEL BURNER Filed June S, 1192A VEL Patented Oct. 25,1927.

UNITED STATES rArENi orifice'.

DL BURNER.

pplcration filed' J une 6,

`In another application of the presentapplicant forLetters Patent of theUnited States, Serial No.V 655,386, filed August 1,923, there are shownand described certain improvements in oil'burners. In that application arequirement was made on the part of the `Commissioner of Patents fordi-` vision on the ground that the claims were dravvn to severalindependent inventions. The present application is made primarily forthe purpose of complying with that requiremeiit and for covering one ofsuch in dependent inventions, butin the timewhich elapsed between thefiling of said earlier application and the making of such requirementfor division,.the construction which formed the Subj ect matter of thesaid earlier application as filed was further developed and perfectedand the present application, therefore, While covering the originalinde-k pendent invention, is based upon the perfected construction andis addressed in part to the perfected features. The invention which isVthe subject of this application, is

concerned particularly with the construction of the burner itself, thecontrol of the supply of oil and Water to the burner being covered iiianother application Serial` No. 718,229 tiled J une 6, 1924.

In the burner which forms the subject of the present application, as inthe burner which was shown and described in said application Serial No.655,386, the oil is delivered at the burner tip, not in a vaporizedforni, as in many oil burners, but in a liquid forni and is taken up,carried on, sprayed and vaporized by a surrounding envelope ofsuperheated steam. This result requires a certain construction of theburner proper, as will be described hereinafter. Furthermore, themaintenance of constant regulated pressure under which the oil isdischarged is essential to the control of the temperature and' toperfect combustion and forthe accomplishment of these purposes it hasbeen found desirableto do away with the means for adjusting` the steamorifice, as described in said application Serial No. 655,386, and toprovide a stabilizing valve through which any excess of superheatedsteam developed in the generator, instead of being discharged from thegenerator at a point Where it Will mingle With the hot products ofcombustion at the tip `of the flame, is returned to the burner nozzleWhere it is added to the steam directly supplied thereto, in propera1,924. Serial No. 718,230.

tion to the consumption of oil and, through the resulting tendency toincrease Ofv teinperature and pressure, reacts through the pressurecontrolled oil and Water supply to cutdoivn the supply of both oil andvvater, thereby maintaining the internal temperature in the combustionchamber and the pressureiin the generator substantially constant. Theinvention will be more fully described hereinafter With reference totheaccompanying drawing, the'sin'gle figure of lwhich shows, partly inelevationian'd partly intesi@ scribed in said application Serial No.655,-

386, with a conical seat c2 to receive a conical liner Z which in tuinis formed With a conical seat CZ to receive a conical member e whichsupports the burner tip e. The conical liner is channeled as at CF andthe burner support is channeled as at e2 to permit the oil to bedelivered to the orifice e3 of the burner tip which, as will be observedand as is necessary to the proper delivery of the oil, is slightlyhigher than the plane of the steam orifices by which it is surrounded ashereinafter described, thus permitting the discharge of oil at theorifice e3 in liquid form and the complete filling of the co1iductingchannels, to the orifice e?, withV oil in liquidform. The liner d,flanged as shown at (Z4, may be secured to the base c by screwY boltsnot shown, and the burner tip supporte-r e may be secured to the linerby screw bolts et and so held in place. rThe burner tip supporter e mayalso be provided with a removable plug e5 for convenience in manufactureand in cleaning out. It Will be observed that the burner tip e has anex? ternal diameter less than the internal diameter of the bore of thesleeve extension of the liner (l, so as to form a chamber (ZG about theburner tip c for the admission of superheatcd steam from the generator,to be described. Upon the sleeve extension of thel liner d is threaded asleeve f conical at its llO i upper end to ,form at f an annular orificesurrounding the burner tip e3 but at a slightly loWer level. In theembodiment of the invention shown in the application Serial No.655,386,7tlie corresponding sleeve was made adjustable by hand, for thepurpose of varying the steam orifice, but in the present constructionthis is unnecessary and when the burner parts have once been as- Sembledand properly adjusted, further adjustment of the `,sleeve f isunnecessary. The

. sleeve j", asvvill be observed, forms a continuation of the chamber Z6about the burner tip- Y j Also supported upon the sleeve fand spacedtherefrom so as to form a. chamber f2, is a sleeve f3 also conical atits upper end and forming van annular Vsteaniorifice f4 surrounding theoral orifice e3 and the primary stemj, the chamber f2 being suppliedwith v excess steam from'the generator as hereinafter described.

Water, under constant'head as described in saidwapplication Serial No.718,229, filed J une 6, 1924 issupplied through a pipe g to a 'channelg2 in one of the radial lugs or (arms of 'thebase c, whence it isdelivered through a pipe g3 to the generator it. Super# `heated steamfrom the generator It is deliv- `ered through a'pipe la', Which risesWithin the generator nearly to the top thereof, and a pipe h2 to achannel h3 in oneof the radial 'lugs or arms of the base c, whence it isdelivered through a channel 7a4 to the chamber d6 about the burner tipe. In the embodiment ofthe invention shown in the application Serial No.655,386, any excess of steam,

developed andV superheated in the generator L, is delivered into anannular channel about thewupper part ofthe chimney sleeve Z,

whence it is allowed to mingle with the hot products of combustion asthey issue through Vopenings beneath the refractory top o. In thepresent instance, hovvever,.it has 'been found desirable, in order tomaintain a substantially uniform internal temperature Aabout thegenerator, and a substantially con-VV stantpressure Within Whileproviding a safety outlet for the excess steannto return such excesssteam to a point vvhere`it may be mingled With the steam from theprimarv steam orifice f and'with the oilfiom the oil orifice e3.Accordingly, the excess'steam is conducted Afrom the channel h4, througha suitable connector 71,5, to a stabilizing valve 71,6 vwhichreceivesthe steam through an inlet eh?, upon which rests a sphericalvalve body ha, 'the-Weight of which may be supplemented as desired by aWeight it? supported in the closed weight chamber 71.1. From the valvechamber such'steam as vpasses the valve hs is .delivered ,through asuitable conductor la to .the chamber f2 which terminates in thesecondary, annular steam orifice f4 about the primary steamv orifice fand the oil orifice,

- f3. Thereby excess pressure Within the generator maybe relievedthrough the stabilizing valve lr6 .and the excess steam is deliveredtothe burner nozzle, through the secondary steam orifice f4, and theremingles With the steam through the primary steam orifice f" and with theoil from the oil orifice Ve3. The

vsurplus steam therefore supplies steam in `proportion to theconsumption of oil and, with the oil, tends toV increase the internaltemperature belowthe generator and therelfore the pressure Within thegenerator. Through the pressure actuated devices for controlling theflowV of yoil and iwater, the flow of each is cut doivnand 'the'tendency toward a rise of temperature belovv the generator and of thepressure in the generator `is counteracted andA substantiallyk uniformtemperature is maintained under given conditions.- i j l It Will beunderstood that changes in details of construction and arrangement canbeinade to suit differenti conditions of use and that, except as pointedout in the' claims, the

' invention is not restrictedto the particular "stabilizing valve, toconduct steam from the generator to the second named steam chamber.

` i 2. In an oil burner, the combination of a burner tip, means tosupply oil thereto, a steam generator, a sleeve forming a steam chamberabout the burner tip and having` an annular orifice about the burnertip, `a second sleeve forming a second steam chamber about thefirstmentioned sleeve and Ihaving' an annular orifice, means to conductsteam from the generator to the first mentioned steam chamber and othermeans, including Y a stabilizing valve, to conduct steam, from vthegenerator tothe second namedfsteain chamber, said stabilizing valvecomprising a chamber connected on one side to the genei`- ator and onthe other side tothe second named steam chamber and a Weighted valvebody to control the passage of steam therethrough.

This specification signed, this 3d dayrof June, A. D. 1924. s

- ARTI-IURB. GOODSPEED.

